40086

Appears in sequences

• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,25.at n=13A064249
• Numbers k that divide the average of prime(k) and prime(k+1).at n=7A066706
• Numbers k such that k divides prime(k) + prime(k+1).at n=13A066895
• Numbers k such that prime(k+1)^2 == prime(k)^2 (mod k).at n=35A067783
• a(n) = f(f(f(f(f(n))))), where f(n) is prime(n)-1.at n=9A141139
• a(n) = prime(prime(prime(prime(prime(prime(n)-1)-1)-1)-1)-1)-1, where prime(n) is the n-th prime.at n=4A141185
• a(n) = prime(prime(prime(prime(n) - 1) - 1) - 1) - 1, where prime(n) is the n-th prime.at n=27A141217
• Integers having ideal digital mean up to base 5.at n=21A144800
• Insert a dot after the first digit of a(n); this is now the beginning of the arithmetic mean of the digits used so far in the sequence. Lexicographically earliest sequence of distinct positive terms with this property.at n=31A335744